Methods, systems, computer program products, and methods of doing business by selectably mixing one or more sound files with a telephone caller’s voice message, either as background for that message or embedded within the message. The substrate may comprise a substantially continuous nonwoven, non-fabric, translucent thermoplastic polyphenylsulfone substrate. The first control apparatus has a network connection function and acquires the software from the remotely controllable electronic apparatus through the network. The cradle is rotated and released from the structure responsive to a sensor for contact within a drop impact zone on the contact surface of the moving sled. Application in particular to radiological image detectors.